Clutch-operating mechanism.



H. L. TURNEY.

CLUTCH OPERATING MECHANISM.

APPLICATION FILED AUG. 5. 1907.

2 SHEETS-:SHBET 1.

orrrcn,

HARRY LEON TURNEY, OF PORTLAND, OREGON.

OLUTCH-OEEBATING filpeeification of Letters Ilattexrt c Patented Jan. 14, 1908.

Application filed August 5. 1907. Serial hi0. 838E160.

To all whom it may concern:-

Be itknown that 1, HARRY LEON Toner-r, a citizen of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented a new and useful Clutch-Operating Mechanism, of which the following is a specification.

This invention relates to clutch operating mechanisms, and more particularly to devices employed for applying and releasing the clutches of logging and hoisting engines.

One of the principal objects of the inven tion is to provide a novel form of clutch operating mechanism in which steam or other actuating fluid is employed to move the clutch to locking and release positions.

A further object of the invention is to provide a device of this character in which the parts are so arranged that the clutch will remain locked when once applied, thus avoiding the necessity of maintaining the fluid pressure which moves the clutch to the operating position.

A still further object, of the invention is to improve, simplify and cheapen the construction of clutch operating devices of this t e with these and other objectsin view, as will more fully hereinafter appear, the invention consists in certain novel features of construction and arrangement ofparts, here-' inafter fully described, illustrated in the accompanying drawings, and particularly pointed outin the appended claims, is being understood that-various changes in. the form, proportions, size and minor detuils of the structure may he made without departing from the spirit or sacrificing any of the advantages of the invention;

In the accompanying drawings :Figure '1 is a sectional plan view of a clutch operating mechanism constructed in accordance wit the invention. tional view of the clutch operating-mechanism drawn to an enlarged scale. Fig. 3 is a transverse sectional view through the cylinder and piston. Fig. 4 is a detail plan view of the valve seat. Fig. 5 is a similar view of theve lve. Fig. 6 is or transverse sectional view of the valve seat showing the arrangement of the exhaust port.

Similar numerals of reference are employed to indicate corresponding parts throughout the several figures of the draw- Lugs.

Fig. 2 is a transverse sec- The clutch operating mechanism is intended more especially for use in connect-ion with logging or hoisting engines, wherein a winding drum (1 is loosely mounted on a shaft 1) to which is keyed or otherwise secured a driving gear 0. The gear carries an annular friction ring (I which is arranged toengage the tapered walls of an annular groove 6- formed at one end of the drum, and the drum and gear are normally separated by means of a compression spring f. One end of the'shaft is provided with a diametrically disposed slot through which extends a cross key g that is arr-urged to operate against a collar 7;, thecollar bearing against one end of thewinding drum a. TlllS cross key is engaged by a thrust P1112 and when the latter is moved in the direction of the hey the key presses against the collar h and the latter shifts the winding drum longitudinallof the shaft until the drum is clutched to t 6 gear wheel, so that rotative movement iwilfthen be imparted from the gear Wheel to the winding drunn ll'hen endwise this thrustpin i is relieved, t separates the drum from the permit unwindin The present invention relates to means for actuating the thrust pin i. One end of the shaft 6 is threaded and carries a nut 10 having a threaded periphery on which is screwed the split tubular end of a cylinder 11, and at thesplit portion of the cylinder are lugs 12 that-leads through the outer head and ,the wall of the cylinder to the inner end of said,

cylinder, this port serving for the admission of steam or other fluidto forcethe -piston outward or to clutch releasing position Within the steam supply pipe 20 is arranged a second steam supply pipe 23 that communicates with the outer portion of the cylinder and is held in place by a suitable nut 24 fitting egsinst the inner wall of the cylinder head end screwing on to the inner end of the plpe. The inner head 15 oi the cylinder is bored ressure on s ring j gear w eel to Plato txisjoffthe and block;- 91, slightly .5

lieyondfsueh akis, so that theeains ares'ef .lbcldng end -aillj'rem'aih in; tilltt'chfiperflting position Without the necessity-of maintaining oonstant pressure of v steam: or "other fluidon the'pi'stson aft'ei' the l'atter hasbeen moved to clutch engaging.posfiti 0n.-.

Whenisteain is admitted to the inner end of the e lin'de'r; the piston isfQrc'ed outward t o the ot ted' line' osition shown in Fig. 2.. thereb removing the locking cams fI'OllTtllQ mQ-Y tinder the influence of the C0111 springfto allow the release ofthe c At. anyfcon'venientpoint is arranged a valve"ehamber inclut ing a ported base 36 and a captor, bonnet 37;.ithezlatter being. placedfincommunication with a source of 325 ressure supply; through, a 'pipe The 83636 has two 'stea mports 39 and i0 which communicate with't he'p'ipes 20 and 23; re-' pression utch.

'speotively, and' i'sf'urther provided with'an exhaust port 41 that c omnn'mi'cateswith a" Thecap or bonnet has a xs'tufling b0); for .the passage of a valve stem- '4 j0', discharge pipe 42 '43-"atthe oute'r'end of which is' a suitable operating handle 44. At the inner end of the fstem'AS-S is arrangeda disk yalye "45 having two s! ram ports 46-47 and-an exhaustport tion, the steam is allowed to flow throughthe pipe 23 to the outer end-of the cylinder 'for th "purpose of applying the clutch and to en- 'h-a from the inner end of the cyhnder; YIf-clannc- I y In clutch operating mechanism. a reroluble shaft. a cylinder secured thereto, a

thrust block extending through one 'end of."

the cylinder. a'pai'r of pivot-ally mounted earn levers arranged in the cylinderand engaging the thrust block and a piston disposed in the cylmder'and.operatively conthrust lock s0 that the thrust -pin is free to l '48. i his'y alve may be'turned so that steam 'e exhaust bz m ma leyl de ltomh, eceatianof' ax,

'nected to said cam; leyers,--"s aid leyers being arrangedUto autoi'natically lock w'henthe tch has benz-nmv a. m1en a ing ostural; 1' 6111i i' flljflti mechanism} revo- 'thle f. :sliaft jcyl'imlei secured -theretoand; nginner-antlouterheads. thejinner head 'helng c-ent'ralltj hored (J-a thrustblock extendingithro-ugh ithe' inner head, a clutch. opera t ing thrust-pin engaged by .said'hlock, a pist o'n-in the cylinder qa' pivot ally inountetl self l lockinglcani lever arranged Zto 1 engage the Qthrust -hl'ock, and a connecting means hetweeirth'e camleyer and the piston. j ,l 3. In clutch operating mechanis m a reyo ylublefshaft. a cylinder secured thereto. and Brovided-with inner-and outer heads; means ior'c'ontrolling the admission and eiyh'au'st of an-opera-ting fluid, the inner'head of the cyl- 'lrextending through the'innet head of the cylinder} a clutch operat-ingtli'rust pin with which the block engages], a pi otally mountiedicam disposed inthec-ylinder and engaging the thrust. block, said cam haying an extend- -ed' arnr and arranged in one position to auto: maticallylock andhold the'ithrust pin in iclutch engagingv position. a piston'in' 'sai'd cylinder. ,and a'link connecting said piston to the cam. H i a "4'. In clutch operating mechanism, a revoluble shaft, a cylinder mounted thereon and haying-- inner and outer heads, the inner headbeing centrally bored, a cylindrical thrust lock extending through the inner head o. the ov-lh der and proyided with a packing ringj an endwise movable thrust pin I with which the block engages, a piston ar- -.ra1 1ged.in.the cylinder. a pair of oppositely disposed cam levers pivoted within the cylinder and arranged to engage the thrust block, and links (-onnectingsaid cam leversto-the piston. v

' ,5. In clut'choperating mechanism. a reroluble shaft having; a threaded end, a nutmo'unted on the threaded end of the shaft" and having a threaded periphery, a cylinder ha -in; an extende'dfportion screwed on the" nut, the l11111 'l168(l of said cylinder having a central bore, 'a cylindrical,thrust hlock "mounted in the bored portion of the head, an endwise movable thrust pin engaged by the block; a pivot pin supported within the cylinder, a; air of. .eccentric cam levers mounted on t e pin and'engaginga'gain's't the inner end of said thrust block, a. pistonin the cylinder, and linksco'nnec't'ing thelcam' levers. to said piston.

6. In clutch o pe'rating niechar'iism, a we ve piston'in the cylinder,a thrust pin, means for. transmitting movement from; the piston to the thrust pin. a stuffing box arranged at' the 'rear head of the cylinder; at steam'pipe pass in therethrough, a portextending. through the end wall of the cylinder and with which ind er' being 'centrally bored; a" thrust block its luhle' shaft, a cylinder mounted thereon, 'a-

the stear n p 1pe cqnpects, a-sor gd st-am pipe In fesfimpny thQ-t'I; claim the foregging fittmg wl flnp the first and extending through as m-yown, 'I hau hereto a'ffi'xed my s'lgnat0 the. ln tn'or of the cyhndelf. a valve'casF tune in lhepl esen ce Qf-UVOWItIIQ-SS GS.

ing \\ji[l1 \$."hi("hb0fl1 pipes communicate, and HARRY LEON TUBNEY. 5 a pm tec'l Valve "disposed in such casing gynd XYitne ses:1

cqmrolling the flmvofa-fiuifl under-prssure M. R. PARELILS,

to and from. the cylindgn LJJENNING'S. 

